Stencil blank with removable backing sheet



May .16, 1933 H. P. ELLIOTT r ,9

E'I'EN CIL BLANK WITH REMOVABLE BACKING SHEET Filed April 1 1, 1932 'INVENTOR Harmon EW/O/fi ATTORNEY Fi 25 in% section, or panel. i

. famed,

Patented May 16, 1.9 3 3 I Harmon rrnnixo'rr, orwarnnrowmnassacnusmrs, assrenonyro ELLIOTT ADDRESSING macrmm commmr, a coaroaa'rron or massacnusmrs s'rnncri. 3mm wrrn movaam naclgmesnnar Application filed April 11,

y This' invention relates'generally to blanks for making stencil cards such as are com- {monly used in addressing machines, *but more specifically-is designed to produce an' 5 improvement on the type of such stencil" v blanks shown in Patent- N 0. 1,481,834, granted to Sterling Elliott January 29, 1924, or Patent No. 1,068,578 granted to Harmon- P. Elliott July 29, 1913, in-thata removable 1 panel or backing sheet is retained in said' lank until after the stencil has been formed, though somefeatures of the invention might be used with other stencilizable structures.

' A further improvement involvesthe' use" 'of a facing of finely divided carbon on any iorm of'removable backing sheet constituting a part'of a stencil blank. The best form of construction embodying my inventlon at present known to me is illustrated in theac-- companying draw-ing in'which F g. 1 is a perspective view of such a stencil blank looking at the back of'the same.

.Fig. 2 is a cross section on line 2-2 of ig. 3. is a face view of the removed backhroughout the drawing like reference characters indicate like parts.

-'.The card blank shown in FigQ'lhas "th I usualrectangular frame of stiff cardboard .or bristol board,generallyf indicated at 1,

and composed of the upper rectangular "frame section 6, and the lower, sli htly wider frame section 6a, between which rainesections isa center strip 5 of reasonably stiff paper, a part of which has heretofore been cut out to form a rectangular panel opena ing, the]e dges of which cut paper'sli htly ' overhang the inner edges of the widerrame 0 section 6a. The sheet of coated Yoshino paper 7 in which the stencil is to becut has been the'reafter'pasted to the inner edges ofthe-partlycutawaystrip 5, all as "clearly shown in the prior patents hereinbefore men According to the present inventionthe center strip of paper 5 is not completely cut; out t'o-formsuch panel opening as 'in'thepatent, but is only scored or perforated v along lines 2, 2,ad acent the inner edges of the scoring 2, 2.

before the Yoshino sheet" 7 is pasted form of little sheets of -paper, was a thin ribbonxofl such carbon stencil blank, be

r then become tween the fibres of .the' Yoshino paper ex-' cil legend, an much more'legible. r

1932. serial in). 604,452.

the main frame 1 so thatth'e panel so delimited can be easily torn out later. "Preferably a portion 'of'the strip of paperforming such panel is, however, cut out bodily at one corner of the panel to form the tab 3 which can easily be turned up by the finger nail of the operator into-the position shown in Fig. l, and then grasped-for the purpose of tearing out thepanel 9, marked out by Over an area of said removable panel portion on that one of its faces adjacent the coated stencil paper "7, there is "applied, according to the presentinvention, a substantial layer -of finely divided carbon 8 substantially'such as-is employed in making carbon sheets for use in producing duplicate copies on typewriting machines. This carbon may either be applied in a viscous form by a suitable roller to astrip'o f the paper 5 from which the cards are-later'm'ade in suitable machines, and allowed to 'dry,or it may be'applied insuchform "in an convenient way to the-partly made bla ,i. e.

thereon, the-paper 5- inthe very thin carbon or it may be attached topaper which is fed to the-machine in the process of makinfg theinitialportionof the ore such Yoshino paper is added.

In anycase the'carbon surfaced 'area of the paper 5 underlies the area of the coated paper in which the-name and address is to be cutby type pressure in the usual way, and, as a result,particles of-the carbon will pressed into or entangled beposed by type ressure" in formingthe stenthereby render. said legend After ,the stencil legends have -been so rwritten-the structure so producedmay .be a put inan addressing machine in a stack and run through the/machine rapidly to produce the initial customary inking. u Theink then" enters the-exposed fibresof the'Yoshino paper'and'furthergincreases the legibility of v the stenciluand also puts it in=a condition such that a satisfactory print can be taken from it in subsequent use.

Thereafter the panel 9 of the backing sheet is torn off and thrown away and the completed stencil cardis ready for use for ad dressing purposes. I

The advantages of the invention are nu labor in the making the product.

.ing shcet,'the

1 to be provided when the stencilis cut on the .cordance with the present 'invention.

- ing sheetwas sometimes I operations, operations proceeded because of accumulatstencil was inked the back of typewriter and, in any case, of the backing sheet between each nklng operation requires of the operator. All of this trouble is eliminated byleaving a suitable removable panel the blank itself, in ac- Fur.- thermore a fresh panel .of this backing pa per is automatically presented with each blank as it is chine, whereas in the old system each backused for a series of becoming lesssatisfactory as the of backing paper on ed and overlapping indentations formed therein. v v

In the prior practice the initial inking of the stencils, which is always done soon after they are made, running-them one at a time through an addressin machine, while the operator held a sheet 0. paper in the printing -zone under each stencil as it arrived at theinking location, stopping and starting the machine for each individual inking operation. This sheet of paper hadto be shifted after'each that operation would not come under. the next stencil to be inked, because if suchover-v lap ing occurred a portion of the inkon the backing sheet would then be transferred to the said next stencil card, and when that card was envelope a phantom address would appear adjacent to, and possibly running into, the proper name and address then being stencilled on such envelope or other mail matter. This is technically known as oifsetting. By the use of the present invention, the services, or even the attention of an operator are not needed during this preliminary inking operating. He simply'loads the machine up with a stack of the freshly cut'stencils and they are run through the inking zone as rapidly as the machine-can drive them, while the operator can be doingother work, and of course all offsetting is avoided.

A minor saving is effected because no ads provided with a separate backing sheetfor such backing sheet has the adjustment tlme and the close attention.

cut on the typewriting ma has been accomplished by,

' ,Stantially so that the ink which, had. been deposited on the face-0f the sheet by.

tab, the operatorsfingers will become later used to address an "at an .earlier stage in the manufacture of the stencil blank.

After cutting the stencil on the typewriting machine when using the. ordi nary backlogend is hardly legible, and consequently it is a difiicult matter to proofof the present invention is faced with a finely' divided carbon, as above described, the fixation of .the black carbon particles between the fibres of the Yoshino paper in the stencilcutting' operation renders it perfectly. legible'for-proof-reading purposes.

Another advantage results from the fact that if separate, loose, sheets are used for backing purposes in cutting stencils, they will buckle into the indentations in a badly dented typewritingmachineroller under the blows;of .the type and. thereby produce a blurred stencil, whereas in the present invention the backing, panel 9. is under consider tension from the surrounding frame 1,

, and is necessarily in an initially smoo h condition as the result of the. process of manufacture of the blank. As a result it stands up like a drumhead over a dented platen roller in the stencil cutting operation and produces a stencil.

. Various changes in the minor features of the above described construction could be made without departing from the principle of the invention as above described and subdefined in the appended claims.

sharply: defined and evenly cut The tab that delimited area of sheet 5 to which "the carbon coating 8 isapplied, because if any of thecarbonappears on the surface of the blackened thereby when grasping the tab; So long as .this is avoided thetab. may be increased in size to any desired degree, even sothat it will extend clear across the end of the panel 9.] a i Having described my invention, I claim: 1.. In a card for makingstencils comprising a rectangularframe, and a sheet sup orted thereby composed of material adapted to be. acted on by type pressureto form a stencil, the combination, with said above described structure, of a backing'panel for said sheet temporarily attached to said structure so as to be easily removable therefrom,x said backing panel having an attached tab adapted to be grasped by the user in such operation of. its removal.

v 3 might be made of shapes and' sizesdifli'erentjfrom that shown, but preferably it shouldnot-in any case extend into read such stencils, but if the backing panel Yoshino paper, and a backing panel attached to said frame by reativel weakened sections extending subsmntia ly all the way around its periphery, said panel having an integral tab at one corner adapted to be grasped by the operator in the act of tearing said panel from said frame.

3. As a new article of manufacture a stencil blank comprising a frame of cardboard, a sheet of coated Yoshino paper attachedto said frame and a panel of backing aper held to both along the inner edges 0 said frame by partly severed fabric, together with a layer of finely divided coloring matter confined between .limited areas of said panel and sheet and underlying the area of the latter which is to be stencilized.

4. An article of manufacture such as defined in claim 3 in which said colored particles adhere only to said panel.

5. An article of manufacture such as defined in claim 3 in which one part of said panel free from coloring matter has been cut away sufficiently to form a tab which may be grasped by the user in effecting the removal of said panel.

6. An article of manufacture such as defined in claim 3 in-which a part of said anel adjacent a line of severance in said abric isdevoid of coloring matter and adapted to be flexed in removing said panel.

7. A stencil blank comprising a relatively stiff rectangular frame, a sheet of coated Yoshino paper, and a backing panel attached to said frame by relativel weakened sections extending substantia ly all the way around its periphery, said panel having a tab adapted to be grasped by the operator in the act of tearing said panel from said frame.

8. As a new article of manufacture, a stencil blank comprising a rectangular frame of stiff material, a sheet of stencilizable material stretched across the opening in said frame and attached thereto, and a sheet of tougher fabric also stretched across said frame and attached thereto back of said stencilizable sheet, said backing sheet having a panel portion partly cut away from and partly attached to the surroundin border portions thereof which are attache to said frame, and said panel portion underlying the area of said first-mentioned sheet which is to be stencilized; whereby said anel may serve as a backing sheet during the cutting and initial inking of a stencil being formed from said blank, but can thereafter be easily 'torn out before said stencil is put to use.

9. As a new article of manufacture, a

of said frame, the area of said first-mentioned sheet which lies within said lines of cement being partiallyfsevered from said surrounding cemented portions; whereby the partly severed panel so formed will be held in place to serve as a backing sheet durstencil blank comprising a sheet of paper sandwiched between and cemented to, two

similar rectangular frame sections of stiffer 

